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Earnings Per Share | 12 Months Ended
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Dec. 31, 2012
Earnings Per Share | 17. Earnings Per Share The computation of basic and diluted earnings per share is as follows:
|  | Years Ended December 31, |
|  | 2012 |  |  | 2011 |  |  | 2010 |
($ in thousands, except per share amounts) |  |  |  |  |  |  |  |  |
Net Income |  | $ | 37,773 |  |  | $ | 145,420 |  |  | $ | 9,642 |
Noncontrolling interests |  |  | (101 | ) |  |  | — |  |  |  | — |
Preferred stockholder dividends |  |  | — |  |  |  | (9,482 | ) |  |  | (3,289 | )
Allocation of earnings to preferred stockholders |  |  | (64 | ) |  |  | (24,260 | ) |  |  | (1,144 | )
Net Income Attributable to Common Stockholders |  | $ | 37,608 |  |  | $ | 111,678 |  |  | $ | 5,209 |
Shares: |  |  |  |  |  |  |  |  |  |  |  |
Basic: Weighted-average number of shares outstanding |  |  | 7,727 |  |  |  | 6,211 |  |  |  | 6,014 |
Plus: Incremental shares from assumed conversion of dilutive instruments |  |  | 346 |  |  |  | 623 |  |  |  | 423 |
Diluted: Weighted-average number of shares outstanding |  |  | 8,073 |  |  |  | 6,834 |  |  |  | 6,437 |
Earnings (loss) per share—basic |  | $ | 4.87 |  |  | $ | 17.98 |  |  | $ | 0.87 |
Earnings (loss) per share—diluted |  | $ | 4.66 |  |  | $ | 16.34 |  |  | $ | 0.81 |
For the years ended December 31, 2012 and 2011, there were no non-participating securities (stock options) excluded from the above computations of weighted-average shares for diluted earnings per share, respectively. For the year ended December 31, 2010, non-participating securities (stock options) representing 150,738 shares of common stock were excluded from the above computations of weighted-average shares for diluted earnings per share due to the antidilutive effect of the securities’ exercise prices as compared to the average market price of the common shares during the period.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=16381557&loc=d3e4984-109258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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